{- This module was generated from data in the Kate syntax
   highlighting file makefile.xml, version 2.0, by Per Wigren (wigren@home.se) -}

module Text.Highlighting.Kate.Syntax.Makefile
          (highlight, parseExpression, syntaxName, syntaxExtensions)
where
import Text.Highlighting.Kate.Types
import Text.Highlighting.Kate.Common
import Text.ParserCombinators.Parsec hiding (State)
import Control.Monad.State
import Data.Char (isSpace)
import qualified Data.Set as Set

-- | Full name of language.
syntaxName :: String
syntaxName = "Makefile"

-- | Filename extensions for this language.
syntaxExtensions :: String
syntaxExtensions = "GNUmakefile;Makefile;makefile;GNUmakefile.*;Makefile.*;makefile.*"

-- | Highlight source code using this syntax definition.
highlight :: String -> [SourceLine]
highlight input = evalState (mapM parseSourceLine $ lines input) startingState

parseSourceLine :: String -> State SyntaxState SourceLine
parseSourceLine = mkParseSourceLine parseExpression

-- | Parse an expression using appropriate local context.
parseExpression :: KateParser Token
parseExpression = do
  (lang,cont) <- currentContext
  result <- parseRules (lang,cont)
  optional $ do eof
                updateState $ \st -> st{ synStPrevChar = '\n' }
                pEndLine
  return result

startingState = SyntaxState {synStContexts = [("Makefile","normal")], synStLineNumber = 0, synStPrevChar = '\n', synStPrevNonspace = False, synStCaseSensitive = True, synStKeywordCaseSensitive = True, synStCaptures = []}

pEndLine = do
  updateState $ \st -> st{ synStPrevNonspace = False }
  context <- currentContext
  contexts <- synStContexts `fmap` getState
  if length contexts >= 2
    then case context of
      ("Makefile","normal") -> return ()
      ("Makefile","prereq") -> pushContext ("Makefile","rule") >> return ()
      ("Makefile","rule") -> return ()
      ("Makefile","silent") -> (popContext) >> pEndLine
      ("Makefile","string\"") -> (popContext) >> pEndLine
      ("Makefile","string'") -> (popContext) >> pEndLine
      ("Makefile","assign") -> (popContext) >> pEndLine
      ("Makefile","value") -> (popContext >> popContext) >> pEndLine
      ("Makefile","dollar") -> (popContext) >> pEndLine
      ("Makefile","call(") -> return ()
      ("Makefile","call{") -> return ()
      ("Makefile","callVar(") -> return ()
      ("Makefile","callVar{") -> return ()
      ("Makefile","callFunc(") -> return ()
      ("Makefile","callFunc{") -> return ()
      _ -> return ()
    else return ()

withAttribute attr txt = do
  when (null txt) $ fail "Parser matched no text"
  updateState $ \st -> st { synStPrevChar = last txt
                          , synStPrevNonspace = synStPrevNonspace st || not (all isSpace txt) }
  return (attr, txt)

list_keywords = Set.fromList $ words $ "include define else endef endif ifdef ifeq ifndef ifneq override"
list_functions = Set.fromList $ words $ "call subst patsubst strip findstring filter filter-out sort word wordlist words firstword lastword dir notdir suffix basename addsuffix addprefix join wildcard realpath abspath if or and foreach value eval origin flavor shell error warning info"

regex_'5b'5e'5cs'3a'2b'3f'5d'2a'5cs'2a'28'3f'3d'3a'3d'7c'3d'7c'5c'2b'3d'7c'5c'3f'3d'29 = compileRegex "[^\\s:+?]*\\s*(?=:=|=|\\+=|\\?=)"
regex_'5b'2e'5d'2e'2a'3a = compileRegex "[.].*:"
regex_'2e'2a'3a = compileRegex ".*:"
regex_'23'2e'2a'24 = compileRegex "#.*$"
regex__'2b = compileRegex " +"
regex_'5b'5e'5ct'5d = compileRegex "[^\\t]"
regex_'40'5b'2d'5f'5cd'5cw'5d'2a'40 = compileRegex "@[-_\\d\\w]*@"
regex_'2e = compileRegex "."

parseRules ("Makefile","normal") =
  (((pDetectSpaces >>= withAttribute NormalTok))
   <|>
   ((pKeyword " \n\t.():!+,<=>%&*/;?[]^{|}~\\" list_keywords >>= withAttribute KeywordTok))
   <|>
   ((pRegExpr regex_'5b'5e'5cs'3a'2b'3f'5d'2a'5cs'2a'28'3f'3d'3a'3d'7c'3d'7c'5c'2b'3d'7c'5c'3f'3d'29 >>= withAttribute DataTypeTok) >>~ pushContext ("Makefile","assign"))
   <|>
   ((pColumn 0 >> pRegExpr regex_'5b'2e'5d'2e'2a'3a >>= withAttribute OtherTok) >>~ pushContext ("Makefile","prereq"))
   <|>
   ((pColumn 0 >> pRegExpr regex_'2e'2a'3a >>= withAttribute DecValTok) >>~ pushContext ("Makefile","prereq"))
   <|>
   ((pDetectIdentifier >>= withAttribute NormalTok))
   <|>
   ((pDetectChar False '"' >>= withAttribute StringTok) >>~ pushContext ("Makefile","string\""))
   <|>
   ((pDetectChar False '\'' >>= withAttribute StringTok) >>~ pushContext ("Makefile","string'"))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   ((pDetect2Chars False '\\' '#' >>= withAttribute FloatTok))
   <|>
   ((pDetect2Chars False '\\' '\\' >>= withAttribute FloatTok))
   <|>
   ((pFirstNonSpace >> pAnyChar "@-" >>= withAttribute CharTok) >>~ pushContext ("Makefile","silent"))
   <|>
   ((pRegExpr regex_'23'2e'2a'24 >>= withAttribute CommentTok))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","normal")) >> pDefault >>= withAttribute NormalTok))

parseRules ("Makefile","prereq") =
  (((pDetectSpaces >>= withAttribute DataTypeTok))
   <|>
   ((pDetectIdentifier >>= withAttribute DataTypeTok))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   ((pDetect2Chars False '\\' '#' >>= withAttribute FloatTok))
   <|>
   ((pDetect2Chars False '\\' '\\' >>= withAttribute FloatTok))
   <|>
   ((pRegExpr regex_'23'2e'2a'24 >>= withAttribute CommentTok))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","prereq")) >> pDefault >>= withAttribute DataTypeTok))

parseRules ("Makefile","rule") =
  (((pLineContinue >>= withAttribute CharTok))
   <|>
   ((pColumn 0 >> pFirstNonSpace >> pRegExpr regex__'2b >>= withAttribute ErrorTok) >>~ (popContext >> popContext >> popContext))
   <|>
   ((pColumn 0 >> pFirstNonSpace >> lookAhead (pRegExpr regex_'5b'5e'5ct'5d) >> (popContext >> popContext >> popContext) >> currentContext >>= parseRules))
   <|>
   ((pDetectSpaces >>= withAttribute NormalTok))
   <|>
   ((pDetectIdentifier >>= withAttribute NormalTok))
   <|>
   ((pDetectChar False '"' >>= withAttribute StringTok) >>~ pushContext ("Makefile","string\""))
   <|>
   ((pDetectChar False '\'' >>= withAttribute StringTok) >>~ pushContext ("Makefile","string'"))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   ((pDetect2Chars False '\\' '#' >>= withAttribute FloatTok))
   <|>
   ((pDetect2Chars False '\\' '\\' >>= withAttribute FloatTok))
   <|>
   ((pFirstNonSpace >> pAnyChar "@-" >>= withAttribute CharTok) >>~ pushContext ("Makefile","silent"))
   <|>
   ((pRegExpr regex_'23'2e'2a'24 >>= withAttribute CommentTok))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","rule")) >> pDefault >>= withAttribute NormalTok))

parseRules ("Makefile","silent") =
  (((pLineContinue >>= withAttribute CharTok))
   <|>
   ((pDetectSpaces >>= withAttribute FunctionTok))
   <|>
   ((pDetectIdentifier >>= withAttribute FunctionTok))
   <|>
   ((pDetectChar False '"' >>= withAttribute StringTok) >>~ pushContext ("Makefile","string\""))
   <|>
   ((pDetectChar False '\'' >>= withAttribute StringTok) >>~ pushContext ("Makefile","string'"))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   ((pDetect2Chars False '\\' '#' >>= withAttribute FloatTok))
   <|>
   ((pDetect2Chars False '\\' '\\' >>= withAttribute FloatTok))
   <|>
   ((pRegExpr regex_'23'2e'2a'24 >>= withAttribute CommentTok))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","silent")) >> pDefault >>= withAttribute FunctionTok))

parseRules ("Makefile","string\"") =
  (((pLineContinue >>= withAttribute CharTok))
   <|>
   ((pDetectChar False '"' >>= withAttribute StringTok) >>~ (popContext))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","string\"")) >> pDefault >>= withAttribute StringTok))

parseRules ("Makefile","string'") =
  (((pLineContinue >>= withAttribute StringTok))
   <|>
   ((pDetectChar False '\'' >>= withAttribute StringTok) >>~ (popContext))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","string'")) >> pDefault >>= withAttribute StringTok))

parseRules ("Makefile","assign") =
  (((pDetectChar False '=' >>= withAttribute CharTok) >>~ pushContext ("Makefile","value"))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","assign")) >> pDefault >>= withAttribute CharTok))

parseRules ("Makefile","value") =
  (((pLineContinue >>= withAttribute CharTok))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   ((pRegExpr regex_'40'5b'2d'5f'5cd'5cw'5d'2a'40 >>= withAttribute FloatTok) >>~ (popContext >> popContext))
   <|>
   ((pDetectChar False ';' >>= withAttribute CharTok) >>~ (popContext >> popContext))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","value")) >> pDefault >>= withAttribute StringTok))

parseRules ("Makefile","dollar") =
  (((pDetectChar False '(' >>= withAttribute CharTok) >>~ pushContext ("Makefile","call("))
   <|>
   ((pDetectChar False '{' >>= withAttribute CharTok) >>~ pushContext ("Makefile","call{"))
   <|>
   ((pRegExpr regex_'2e >>= withAttribute CharTok) >>~ (popContext))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","dollar")) >> pDefault >>= withAttribute CharTok))

parseRules ("Makefile","call(") =
  (((pKeyword " \n\t.():!+,<=>%&*/;?[]^{|}~\\" list_functions >>= withAttribute KeywordTok) >>~ pushContext ("Makefile","callFunc("))
   <|>
   (pushContext ("Makefile","callVar(") >> currentContext >>= parseRules))

parseRules ("Makefile","call{") =
  (((pKeyword " \n\t.():!+,<=>%&*/;?[]^{|}~\\" list_functions >>= withAttribute KeywordTok) >>~ pushContext ("Makefile","callFunc{"))
   <|>
   (pushContext ("Makefile","callVar{") >> currentContext >>= parseRules))

parseRules ("Makefile","callVar(") =
  (((pDetectChar False ')' >>= withAttribute CharTok) >>~ (popContext >> popContext >> popContext))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   ((pDetectSpaces >>= withAttribute ErrorTok))
   <|>
   ((pAnyChar "=#:" >>= withAttribute ErrorTok))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","callVar(")) >> pDefault >>= withAttribute DataTypeTok))

parseRules ("Makefile","callVar{") =
  (((pDetectChar False '}' >>= withAttribute CharTok) >>~ (popContext >> popContext >> popContext))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   ((pDetectSpaces >>= withAttribute ErrorTok))
   <|>
   ((pAnyChar "=#:" >>= withAttribute ErrorTok))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","callVar{")) >> pDefault >>= withAttribute DataTypeTok))

parseRules ("Makefile","callFunc(") =
  (((pDetectChar False ')' >>= withAttribute CharTok) >>~ (popContext >> popContext >> popContext))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   ((pDetectChar False ',' >>= withAttribute KeywordTok))
   <|>
   ((pDetectChar False '\'' >>= withAttribute StringTok) >>~ pushContext ("Makefile","string'"))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","callFunc(")) >> pDefault >>= withAttribute StringTok))

parseRules ("Makefile","callFunc{") =
  (((pDetectChar False '}' >>= withAttribute CharTok) >>~ (popContext >> popContext >> popContext))
   <|>
   ((pDetectChar False '$' >>= withAttribute CharTok) >>~ pushContext ("Makefile","dollar"))
   <|>
   ((pDetectChar False ',' >>= withAttribute KeywordTok))
   <|>
   ((pDetectChar False '\'' >>= withAttribute StringTok) >>~ pushContext ("Makefile","string'"))
   <|>
   (currentContext >>= \x -> guard (x == ("Makefile","callFunc{")) >> pDefault >>= withAttribute StringTok))


parseRules x = parseRules ("Makefile","normal") <|> fail ("Unknown context" ++ show x)